Production of J/Ψ particles by 43-GeV/c π- mesons on the nuclei Be, Cu, and W
Antipov Yu.M. , Bezzubov V.A. , Budanov N.P. , Bushnin Yu.B., Gorin Yu.P., Denisenko A.A., Denisov S.P., Ech F.A. , Klimenko S.V. , Lebedev A.A., Lednev A.A., Mikhailov Yu.V., Petrukhin A.I. , Polovnikov S.A. , Romishvili V.N., Stoyanova D.A.
The A -dependence of the cross section for the production of J/Ψ particles by 43-GeV/c 7Γ- mesons is measured. It is found that σ = (18±6)Λ °·92±0·06 nb/nucleus in the region χ >0.